Rocketdyne retired engineers

Mel Melcon/Los Angeles Times

Rocket scientists Bob Biggs, 75, left, Paul Coffman, 74, and Joe Stangeland, 73, with a giant F-1 rocket engine on display in front of the Canoga Park headquarters of Rocketdyne, where the men worked. This is the same kind of rocket engine that was used in the Saturn V rocket that carried Neil Armstrong and Buzz Aldrin to the moon.

Rocket scientists Bob Biggs, 75, left, Paul Coffman, 74, and Joe Stangeland, 73, with a giant F-1 rocket engine on display in front of the Canoga Park headquarters of Rocketdyne, where the men worked. This is the same kind of rocket engine that was used in the Saturn V rocket that carried Neil Armstrong and Buzz Aldrin to the moon. (Mel Melcon/Los Angeles Times)

Rocket scientists Bob Biggs, 75, left, Paul Coffman, 74, and Joe Stangeland, 73, with a giant F-1 rocket engine on display in front of the Canoga Park headquarters of Rocketdyne, where the men worked. This is the same kind of rocket engine that was used in the Saturn V rocket that carried Neil Armstrong and Buzz Aldrin to the moon.